Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42165 | Modified asphalt compositions | Richard K. Stuart, Jr., Kenneth F. Grzybowski | 2011-02-22 |
| RE41167 | Modified asphalt compositions | Richard K. Stuart, Jr., Louis Thomas Germinario | 2010-03-23 |
| 7202290 | Modified asphalt compositions | Richard K. Stuart, Jr., Kenneth F. Grzybowski | 2007-04-10 |
| 7144933 | Modified asphalt compositions | Richard K. Stuart, Jr., Louis Thomas Germinario | 2006-12-05 |